An elementary treatise on midwifery or Principles of tokology and embryology This book, "An elementary treatise on midwifery or Principles of tokology and embryology", by A. Velpeau, is a replication of a book originally published before 1831. It has been restored by human beings, page by page, so that you may enjoy it in a form as close to the original as possible. This book was created using print-on-demand technology. Thank you for supporting classic literature.